feat: options page for default mode and search method

Assisted-by: Claude Code
Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>

options/options.js

@@ -0,0 +1,27 @@
+const optMode = document.getElementById("opt-mode");
+const optMethod = document.getElementById("opt-method");
+const savedMsg = document.getElementById("saved-msg");
+
+async function load() {
+  const data = await chrome.storage.sync.get(["defaultMode", "defaultMethod"]);
+  if (data.defaultMode) optMode.value = data.defaultMode;
+  if (data.defaultMethod) optMethod.value = data.defaultMethod;
+}
+
+function showSaved() {
+  savedMsg.classList.add("show");
+  setTimeout(() => savedMsg.classList.remove("show"), 1500);
+}
+
+async function save() {
+  await chrome.storage.sync.set({
+    defaultMode: optMode.value,
+    defaultMethod: optMethod.value,
+  });
+  showSaved();
+}
+
+optMode.addEventListener("change", save);
+optMethod.addEventListener("change", save);
+
+load();